View text source at Wikipedia

User:Roger Hui

許國華

Interests: J, APL, mathematics/programming puzzles (example 0; example 1)

abcdefgh
8
g8 white queen
b7 white queen
f6 white queen
c5 white queen
a4 white queen
h3 white knight
d2 white knight
e2 white knight
h2 white knight
e1 white knight
8
77
66
55
44
33
22
11
abcdefgh
abcdefgh
8
c8 white queen
f7 white queen
b6 white queen
g5 white queen
a3 white queen
e2 white knight
h2 white knight
d1 white knight
e1 white knight
h1 white knight
8
77
66
55
44
33
22
11
abcdefgh

Places visited:

countries (ccTLD)

Belgium Canada China Denmark Germany France Hong Kong India Iceland Italy Japan Macau Mexico Netherlands Philippines Puerto Rico Sweden Taiwan United Kingdom United States Vatican City

Canadian provinces  

British Columbia Alberta Saskatchewan Manitoba Ontario Quebec New Brunswick Nova Scotia Prince Edward Island

American states,
districts, etc.

Alaska California Colorado Connecticut Florida Georgia (U.S. state) Hawaii Idaho Illinois Maryland Massachusetts Michigan Minnesota Montana Nevada New Jersey New York (state) Oregon Pennsylvania Texas Washington (state) Washington, D.C.